Question

a) 5(x-1)=3(4-x)+x


b) x+2(x-1)+3(2x+1)=19


c) 9x-2(1-3x)=2-4(x-1)

Answer 1

a) 5x - 5 = 12 - 3x + x

5x - 5 = -2x +12

5x +2x = 12 +5

7x = 17

x = 17/7

b) x + 2x - 2 +6x +3 = 19

9x +1 = 19

9x = 19 -1

9x = 18

x = 18/9

x = 2

c) 9x - 2 +6x = 2 - 4x +4

15x - 2 = -4x +6

15x +4x = 6+2

19x = 8

x = 8/19